Export version for downstream usage

Move all downstream related config to one file

CMakeLists.txt

@@ -65,13 +65,4 @@ if(ENABLE_CPACK)
   include(cmake/${PROJECT_NAME}CPack.cmake)
 endif()
 
-
-install(EXPORT ${PROJECT_NAME}Targets
-  NAMESPACE ${PROJECT_NAME}::
-  FILE "${PROJECT_NAME}Targets.cmake"
-  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}/"
-  )
-
 include(cmake/k4FWCoreCreateConfig.cmake)
-
-gaudi_install(CMAKE ${PROJECT_BINARY_DIR}/k4FWCoreConfig.cmake)

cmake/k4FWCoreCreateConfig.cmake

@@ -1,6 +1,22 @@
 include(CMakePackageConfigHelpers)
 
+# Version file is same wherever we are
+write_basic_package_version_file(${PROJECT_BINARY_DIR}/k4FWCoreConfigVersion.cmake
+                                 VERSION ${k4FWCore_VERSION}
+                                 COMPATIBILITY SameMajorVersion)
+
+
 configure_package_config_file(${PROJECT_SOURCE_DIR}/cmake/k4FWCoreConfig.cmake.in
                               ${PROJECT_BINARY_DIR}/k4FWCoreConfig.cmake
                               INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/k4FWCore
                               PATH_VARS CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR)
+
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/k4FWCoreConfig.cmake
+              ${CMAKE_CURRENT_BINARY_DIR}/k4FWCoreConfigVersion.cmake
+              DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME} )
+
+install(EXPORT ${PROJECT_NAME}Targets
+  NAMESPACE ${PROJECT_NAME}::
+  FILE "${PROJECT_NAME}Targets.cmake"
+  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}/"
+)